Experiences with a simple titanium ion pump

The construction, operation, and application of a titanium ion pump, which is a version of the Klopfer-Ermrich getter ion pump, is described. This pump, convenient to use, is of simple, yet rugged construction. Use of the pump in processing vacuum tubes results in savings of time, equipment, space, and operating personnel. Ultimate vacuum level is improved by pumping the tubes during the aging and testing steps which follow the normal exhaust procedure.